Баррасии керамики бор нитриди

Керамики бор нитриди (BN) як маводи беназирест, ки бо хосиятҳои истисноии худ машҳур аст ва онро дар барномаҳои гуногуни саноатӣ хеле арзишманд мегардонад. Он дар шаклҳои гуногун мавҷуд аст, асосан нитриди бор шашкунҷа (h-BN), нитриди бор (c-BN) ва нитриди бор вуртзитӣ (w-BN). Шашкунҷаи BN, шакли маъмултарин, аз сабаби хусусияти молиданӣ ва гармигузаронӣ, вале аз ҷиҳати барқ ​​​​изолятсияшавандааш аксар вақт бо графит муқоиса карда мешавад. Керамикаи бор нитриди дар зери ҳарорат ва фишорҳои баланд синтез карда мешавад, ки омезиши нодири хосиятҳоеро пешниҳод мекунад, ки дар бисёр маводи дигар мавҷуд нестанд.

Хусусиятҳои керамикии бор нитриди

Қобилияти гармидиҳӣ: Қобилияти гармидиҳии аъло, махсусан дар шакли шашкунҷа, имкон медиҳад, ки гармии гармро самаранок паҳн кунад.

Изолятсияи барқ: Хусусиятҳои барҷастаи изолятсияи барқ ​​онро барои барномаҳои электрикие, ки идоракунии гармиро талаб мекунанд, беҳтарин мегардонанд.

Устувории химиявӣ: Ба ҳамлаҳои кимиёвӣ, аз ҷумла кислотаҳо ва асосҳои қавӣ тобовар аст, ки устувориро дар муҳити сахт таъмин мекунад.

Муқовимат ба зарбаи гармидиҳӣ: Муқовимати олӣ ба зарбаи гармӣ, ки ба он имкон медиҳад, ки ба тағирёбии босуръати ҳарорат бидуни шикастан тоб оварад.

Қувваи механикӣ: Қувваи хуби механикӣ ҳам дар ҳарорати хонагӣ ва ҳам дар ҳарорати баланд, гарчанде ки ин метавонад бо шакли BN фарқ кунад.

Молданӣ: Хусусияти худидоракунии молидан аз сабаби сохтори қабати он, ки сурхшавӣ ва фарсудашавии қисмҳои ҳаракаткунандаро коҳиш медиҳад.

Заҳролуд: Истифодаи он дар муҳити гуногун, аз ҷумла дар соҳаи тиб ва коркарди хӯрокворӣ, аз сабаби табиати заҳролуд нест.

Иҷрои ҳарорати баланд: суботро дар ҳарорати бениҳоят баланд, аз 1000 °C зиёд дар атмосфераи инертӣ нигоҳ медорад ва онро барои барномаҳои оташ тобовар мувофиқ месозад.

(Pyrolytic Boron Nitride Ceramic Crucible PBN Boat for Vacuum Melting)

Specification of Pyrolytic Boron Nitride Ceramic Crucible PBN Boat for Vacuum Melting

This item is a pyrolytic boron nitride (PBN) ceramic crucible designed for vacuum melting applications. The material is manufactured with chemical vapor deposition, developing a highly pure, dense framework. It contains over 99.99% boron nitride, making certain marginal contamination throughout high-temperature processes. The crucible runs successfully in temperatures approximately 1800 ° C under vacuum or inert gas environments. Its thermal security protects against deformation or cracking, also throughout quick home heating or cooling cycles.

The PBN watercraft displays reduced thermal growth, decreasing tension under extreme temperature modifications. It withstands chain reactions with molten metals, semiconductors, and corrosive gases. This makes it suitable for refining products like gallium arsenide, indium phosphide, and various other high-purity compounds. The non-wetting surface avoids material adhesion, streamlining post-process cleansing.

Electric insulation residential properties allow risk-free use in settings with solid electromagnetic fields. The material’s reduced thermal conductivity makes sure controlled heat distribution, improving process uniformity. Available in personalized shapes and sizes, the crucible accommodates diverse commercial demands. Criterion dimensions vary from 20mm to 200mm in length, with wall thicknesses in between 0.5 mm and 3mm.

PBN crucibles work with ultra-high vacuum systems, preserving architectural integrity below 10 ^ -6 Pa. They outshine conventional quartz or graphite alternatives by eliminating pollutants and prolonging service life. The smooth surface coating lessens particle generation, vital for semiconductor production.

Applications include molecular light beam epitaxy, single crystal development, and metal purification. The material’s transparency to infrared radiation enables real-time process surveillance in certain arrangements. Handling preventative measures include avoiding mechanical impact and sudden temperature shifts above 200 ° C/min. Storage referrals emphasize completely dry, room-temperature conditions to avoid wetness absorption.

Normal assessment for surface area cracks or discoloration makes certain ideal efficiency. The crucible is reusable after appropriate cleansing with non-abrasive techniques. Manufacturing lead times vary based on customization, with conventional units generally offered within 4-6 weeks. Compliance with ISO 9001 requirements warranties consistent quality assurance.

(Pyrolytic Boron Nitride Ceramic Crucible PBN Boat for Vacuum Melting)

Applications of Pyrolytic Boron Nitride Ceramic Crucible PBN Boat for Vacuum Melting

Pyrolytic boron nitride (PBN) ceramic crucibles, usually called PBN boats, are specialized devices for high-temperature procedures in vacuum environments. These crucibles are used chemical vapor deposition. This approach creates a pure, dense material with unique residential properties. PBN boats handle severe warmth, up to 2000 ° C in vacuum conditions. They stand up to thermal shock, indicating they won’t split when temperatures alter quickly. They likewise stay secure chemically, also when exposed to responsive metals or liquified materials.

PBN crucibles are commonly made use of in vacuum cleaner melting for semiconductors. They hold and melt materials like gallium arsenide, indium phosphide, and silicon. These materials are important for making electronic parts. The crucibles prevent contamination since PBN does not respond with most substances. This purity makes sure the end product executes well in tools like LEDs or laser diodes.

The aerospace industry uses PBN boats for processing high-performance alloys. These steels require accurate melting conditions. PBN’s thermal stability permits consistent results. The crucibles also work in crystal development systems. They aid produce single-crystal products for optics or sensing units.

PBN surpasses standard crucible products like quartz or graphite. Quartz breaks down at heats. Graphite can launch contaminations into melts. PBN lasts longer, lowering replacement expenses. Its smooth surface area stops materials from sticking. This makes cleansing much easier and prolongs usability.

Research study labs rely on PBN boats for experiments including unusual earth steels or superconductors. The crucibles handle hostile chemicals without weakening. This integrity supports exact data collection. Makers of thin-film finishings utilize PBN to evaporate materials equally. Consistent coatings enhance product top quality in electronics or solar panels.

Dealing with PBN calls for care. It is fragile and can chip if mishandled. Proper storage space and gentle cleansing preserve its framework. Despite this, its benefits make it a top option for demanding applications. Industries prioritize PBN for its ability to maintain pureness, withstand heat, and deliver repeatable results.

Ширкат Муқаддима

Advanced Ceramics, ки 17 октябри соли 2014 таъсис ёфтааст, як корхонаи баландтехнологӣ мебошад, ки ба пажӯҳиш ва таҳия, истеҳсол, коркард, фурӯш ва хидматрасонии техникии маводҳо ва маҳсулоти нисбии сафолӣ машғул аст.. Аз замони таъсисаш дар соли 2014, ширкат ӯҳдадор шудааст, ки ба мизоҷон беҳтарин маҳсулот ва хидматҳоро пешниҳод кунад ва тавассути идоракунии пайвастаи сифат ва технологияи нав ба пешсафи саноат табдил ёфт.

Маҳсулоти мо маҳсулоти сафолини кремний карбиди, Маҳсулоти сафолии бор нитриди бор, Маҳсулоти керамикии кремний, нитриди кремний, маҳсулоти сафолини цирконий диоксиди, маҳсулоти кварц ва ғайраҳоро дар бар мегирад. Лутфан, бо мо тамос гиред.(nanotrun@ya)

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5 FAQs of Pyrolytic Boron Nitride Ceramic Crucible PBN Boat for Vacuum Melting

Pyrolytic Boron Nitride (PBN) ceramic crucibles are high-purity containers made through chemical vapor deposition. This process creates a material with strong thermal stability, low reactivity, and excellent resistance to thermal shock. PBN boats are widely used in vacuum melting applications due to their ability to handle extreme conditions without contaminating materials.

1. What makes PBN crucibles suitable for vacuum melting?
PBN crucibles resist high temperatures and chemical reactions. They stay stable in vacuums and inert atmospheres. Their non-reactive surface prevents impurities from mixing with melted materials. This ensures high-purity results in processes like metal or semiconductor processing.

2. What maximum temperature can PBN crucibles withstand?
PBN crucibles handle temperatures up to 1800°C in vacuum environments. They maintain structural integrity under repeated heating and cooling cycles. Their low thermal expansion reduces cracking risks compared to other ceramics.

3. Are PBN boats compatible with all materials?
PBN works well with most metals, semiconductors, and high-purity compounds. It avoids reactions with aggressive substances like molten aluminum or gallium. However, it degrades in oxygen-rich settings above 800°C. Always check compatibility with specific materials before use.

4. How should PBN crucibles be cleaned and maintained?
Clean PBN boats with dilute acids or alcohol to remove residues. Avoid mechanical impacts or sudden temperature changes. Store them in dry, contaminant-free environments. Proper care extends their lifespan and prevents performance issues.

5. Why choose PBN over graphite or quartz crucibles?
PBN offers higher purity and better thermal shock resistance than graphite or quartz. It does not release gases in vacuums, unlike graphite. It also outlasts quartz in high-temperature cycles. These traits make PBN ideal for critical applications requiring precision and reliability.

(Pyrolytic Boron Nitride Ceramic Crucible PBN Boat for Vacuum Melting)